Culvert-fastener.



U. E. GILBERT.

GULVERT FASTENER} APPLICATION rum OCT. 30, 1908.

91 7 55955 Patented Apr 5, 1809.

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continen -Festi ities.

N0. amass.

T0023 whom it mayconcern;

Be it known'that I; CLARE CE E. Gunner,

' a citizen of the United1States,1-residing at.-

' Lyle, in the county of lit lower and; State of Minnesota,- ha e invented new and use;

full Improvements Culvert.- Fasteners, of which the following isle specification.

This invention relates to fastening devices primarily' intended 'i or jnse in, connection theinventi'on is toprovide'en ,eXt-remel simple and" effective :device'which will' dispense with the use of bolts or"; rivets" now commonly employed in t liis connection. I With the above, RBQl'OiShQl objeotsin View which will be more apparent as the dQ'SCflP: I tion progresses, the invention, resides the novel-construction.of fastening devices,- hereinafter fully described and claimed] In the accompanying drawings, there has been-shown, a-simple and preferred form of the invention, it being, however. understood that no limitation isneces sarily made to the precise construction therein exhibited but thatfurther changes, alterations and fl1OCilfications the iscopeof the invention .m'ey bev resortetl to'when desired. I. Int-he drawing, Figure l-is an elevation of a- .portion of the corrugated culvert illus- 3p trating its longitudinal. edges connected with 1 the improved. fastening device. Fig. 2 is a trans ersesectional of the same," illus 'trat-ing. manner of connecting two out. vert se ions. is'a lo gitudinal sectional an. ed scale, through o a cnlveit tratino" e th in. sect l .c t. V V section v Lview connected by a' slightly modified form of fastener. I Fig. 5 his pei spectiy'e View of the engagin .inenibe iiiillustifiated a 'hl ankfo int'romwhich the'modii the accompe: ng die cg the nip l desigm. es apoition of a cormgated ert. Tiese culverts 1 are constructed 1.1 asinglesheetof suitable metal; @QETH- ends overlapping as illustrated inYFig. 3 of; the drawing. These overlapping portions are each provided with suitable openings adapted to aline with each other and in general use'intende'd for the reception of a rivet 55. or. bolt. in the present instance the aliningopenings one provided with the bolt mem- Specification of Letters Patent. Application filed. OotobeIBO,

with corrugated culverts, and the objectof 'ated, and-bent singul rly so-as'to have their r slight modification oi roy device. In these Patented April 6, i909. 1908. Serial to. 460.291.

This 1nember2 has its body portion. provided with a longitudinally extending slot orop'en ing 3., the inner edge of'which, that is the edge adjacent the head of the bolt is.

adapted to aline with the outerwall of the inner qlverlapping portion of the culvertso that the distance between this Wall and the head-hf the bolt is of a distance equalingthe: thickness of the sheet of metal from which the culvert is constructed. Adapted' to be positioned'within the opening 3 of the bolt 2 is a key member 4. wedge shaped body portion provided with a. shoulder 5 and a portion extending from the shoulder of a lesser width than the enlarged portion of the wedge shaped key, as designated by the numeral 6. The shoulder 5 between its point of connection with wedge shaped portionof the key and the extending portion 6 thereof is of a width equaling the thickness of the-overlapping portion of the culvert. w in applying the improved securing device to a culvert the bolt :2 is firstinserted within the openings provided by the over-- lapping sections, the key 4 is then forced between theoverlapping section of the culvert and the outer wall provided by the slot 3 ofthe bolt. As the key is forced inwardly through the slot the shoulder 5 will engage the outer edge provided by the opening 3 within the outer oi overl ping portion of the culvert, thus sec o and retain} ing in locked position ping edges. tom the Hove desci'i ken in condrawings,

be applied to the oveiieppingedges of the culvert to securely lock the same and that jthey may be also eppliedior joining the several sections of a complete culvert to:

gether. v

it is to'be nno to length or o; equaling the hey between. the lower edge i 5 553.1 the top oi the key.

in Figs. at, 5

and have illustrated. a

figures the body and head, comprising what In Fig. 6 there is illustrated the. blank device may from which the retaining element A is Jtonmedi' This structure comprises an elonvided with vertically exten rojecting ormin what may be termed the head D.

the entrance of the key its endsproing ofi'sets C,- from each side of the body B and" gated body portion B havin JThe ody B is bent-centrally upon itself as'clearly illustrated in Figs. 4; and 5 of the drawings and are-positioned a suitable distance apartso as to provlijde an opening for The key E'is substantially similar to the key 4: previously described and is connected with the edges of the culvert in a precisely similar manner to that of, the aforesaid y constructing the element A of a single piece of metal it will be noted that the cost of production of this member is reduced to a minimum and that the necessityof providing the, bolt 2 with the transverse slot is en tirely obviated. Having thus what is claimed as new is 1. The combination with the overlapping edges of a culvert or the like having ahning I fully described theinvent ion muse larged head engaging the openings, a key tor the slotted member, said key being wedge shaped and provided with a shoulder, and the. said shoulder being of a length equaling the thickness of the uppermost or overlapping section of the culvert. v 2; A fastener for the overlapping edges of a corrugated culvert or the like comprising a member constructed from pieceoiifl, metal .bent upon itself to form spaced arms and having its ends provided with heads, and a key'having a wedge shaped 'i'ace provided'with an ofi set adapted to be inserted between the spaced arms and being of a length equaling the thickness of the uppermost oroverlapping' sect-ion of the 1 culvert. v I 4 a In testimony whereof I aifix my signature in presence ot'twowitnesses. v CLARENCE E. GILBERT.

Witnesses; FRED A. CRILLY,

CHARLES O. Brno:

a single openings, oi a'slotted member havingan en g3 

